the army is moving to unify it's command structure to make thorough is has a more educative fighting force. this morning, nelson mandela is in the hospital, jacob zuma paid him a visit, and said there is no cause for alarm. >>> susan, as you can imagine, south africans are holding their collective breath, their very worried about their beloved former president. they call him father in one of the native languages, they adore him. he helped bring democracy to this nation. we're getting very little information about what is wrong with him. as you said, the president visited nelson mandela, and he came out saying he is in good care and is comfortable. we're not being told what kind of tests are being run on him. yesterday, when the news broke that he had been hospitalized, we're told that he went in for tests, and that it was in line with treatments that people, his age, 94 go through. but no more details today from the presidency. jacob zuma treats it as a closely gaurded secret. he is appealing to everybody to give his family privacy. >> we're certainly hoping for the best. what is the